What to do if my Hach AMTAX sc Measuring Instruments shows 'COOLING FAILED'?
- BBarbara GarzaAug 2, 2025
If the Hach Measuring Instrument displays 'COOLING FAILED', it indicates that the instrument's interior is too warm. The cause may be that the air filter is dirty or the fan is not working correctly. Inspect the air filter; clean or replace it if necessary. Also, check the fan to ensure it is functioning properly.